Lambda Response Streaming allows sending incremental responses, but those response chunks can arrive long after you write them. They are buffered in a rather unexpected way, delaying all messages you stream. But there is a workaround to force the stream to flush.
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AWS
Building a CDK Construct Library: thoughts and tips
I recently created a CDK library provisioning a CI/CD pipeline for serverless apps on AWS. Having finished the “regular” JS library, it took me a day to convert it to a “proper” CDK Construct library. Not long, and I learned a lot. Here are my thoughts and tips.
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AWS
AWS Lambda – Node.js vs. Python for serverless
After tabs vs. spaces, vi vs. emacs, let’s fight over this: which is better, Node.js or Python for AWS Lambda and serverless in general? I have my opinion on this, and the fact I prefer TypeScript over Python makes me only slightly biased.
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AWS
Understanding Logical IDs in CDK and CloudFormation
CDK generates Logical IDs used by the CloudFormation to track and identify resources. In this post, I’ll explain what Logical IDs are, how they’re generated, and why they’re important. Understanding this will help you avoid unexpected resource deletions and baffling “resource already exists” errors during deployment.
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AWS
Top 12 Serverless Announcements from re:Invent 2022
re:Invent 2022, the annual AWS conference in Las Vegas, is now behind us. I did not attend in person, but that gave me time to consolidate this list of top new serverless features while everyone else is sleeping off the intense 5-day conference. And I envy them just a little.
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AWS
How to pass AWS Certification exams
I’ve never cared too much about certificates, apart from the SSL ones (haha). And yet I passed 7 AWS exams. Why? How to prepare? How to pass? How to pay only 50% for the exam? I answer all this and more in this post.
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AWS
Running Serverless ML on AWS Lambda
Yes, you can run Machine Learning models on serverless, directly with AWS Lambda. I know because I built and productionized such solutions. It’s not complicated, but there are a few things to be aware of. I explain them in this in-depth tutorial, where we build a serverless ML pipeline.
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AWS
Least deployment privilege with CDK Bootstrap
Security is not convenient. That’s probably why the CDK, by default, uses AdministratorAccess Policy to deploy resources. But we can easily change it and increase the security of our AWS account, following the least privilege principle with a minimal additional burden.
AWS
The AWS CDK, Or Why I Stopped Being a CDK Skeptic
Until recently, I was skeptical about the AWS CDK. I believe in Infrastructure as Code (IaC), but with the “code” being YAML. But after using CDK in real projects, the amount of heavy lifting it does and the vast reduction of a boilerplate code changed my view.
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AWS
Decision Tree: choose the right AWS messaging service
Have you ever been stuck deciding between SQS, SNS, Kinesis Streams, and EventBridge? Struggled to pick the right one for your use case? If the answer is “yes”, I’ve got you covered with a simple decision tree to help you make the right decision.
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